Cultivator guard



Aug. 18, 1931, J. H. Kor-:BEL

CULTIVATOR GUARD Filed Feb. l5; 1929 Patented Aug. 18, 1931 Aram* FFICE.

JOSEPH H. KOEBEL, F LOWELL, IOWA CULTIVATOR GUARD Application lled February 15, 1929. Serial No. 340,163.

My present invention has reference to ay guard for cultivators designed to be arranged adjacent to the outside tooth or plow point of a cultivator frame so that the same will s run between the said outermost tooth and the adjacent row of corn to prevent the corn from being covered by the material displaced by the tooth.

An object is the provision of a guard for lo this purpose which may be adjusted by the operation of a lever, to arrange the same in proper position to ride overv the ground surface regardless of the depth at which the teeth or shovel points of the cultivator enter the ground.

A further and important object is the pro-A vision of a guard for this purpose that is so mounted on the cultivator frame as to permit the said shield riding over uneven ground surfaces as well as over sticks or stones which may be in the path of contact therewith so that the said guard will offer no obstruction to the free operation of the cutivator.

A further and important object is the provision of a guard for cultivators that may be removably and adjustably attached to the beam or frame of the cultivator.

To the attainment of the above broadly stated objects and others which will present themselves as the nature of the invention is better understood, the improvement also resides in certain other novel features of construction, combination and operative association of parts, one satisfactory embodiment of which is disclosed by the accompanying drawings.

In the drawings Figure 1 is a side elevation of a suicient portion of a c'ultivator to illustrate the application of my improvement thereon.

Figure 2 is a top plan view thereof.

Figure 3 is a sectional view on the line 3--3 of Figure 1.

Figure 4 is a sectional View on the line 4-4 of Figure 1.

Figure 5 is a detail perspective view to illustrate the manner in which the bar of the shield is received between the widened end of the yoke member of the improvement.

Referring now to the drawings in detail,

the numeral 1 designates the beams that constitute the cultivator frame. Each of these beams has attached to its arched end a plow point or tooth 2.

On the beams carrying the outermost teeth 2v I mount my improvement.

The improvement necessarily includes a guard 3. VPreferably the shield is in the nature of a flat metal plate. The guard has iXedly secured on its upper edge a bar 4. The bar has a forward oifset portion 5, .and is thence continued at an upward angle, as at 6, and is pivoted tothe side of the cultivator fraine'in a manner which will presently be setforth.

Embracing the mentioned outerbealn of vthe cult-ivator frame there is a U-shaped bracket 7. An adjustable binding element 8 is threaded through the inner arm of the Pel-shaped bracket *for removably fixing the saine on the frame 1. The outer arm of the U-shaped bracket carries an outst-anding pvot 9 and this pivot passes through an opening in the outer end of the part 6 of the bar 4. The pivot also passes through an opening in triangular member which is preferably -cut away at the center thereof and which I will refer to as a yoke. rlhe yoke is indicated by y the numeral 10, and the widened` end thereof has at its corners lugs or enlargements 11 to which are secured a segmental plate 12. The plate 12, together with therouter arm 13 of the yoke 10, provide a guide for the parts 6 ofthe bar 4. Suitable washers or like spacer elements may be .arranged on the pivot between the bar and the yoke, and a removable element, such as a cotter pin 14 passes through the pivot for holding the yoke thereon.

The inner and narrow end of the memberv 10-which1 have referred to as the yoke, is formedwith an upwardly'directed arm 15 to which is pivoted a link 16. rlhe link 16 is in turn pivoted to a lever 17, the said lever having its lower 'end pivotally connected to a segmental rack 18. rlhe lever carries a handle operated spring influenced pawl or dog for engaging with the teeth of the rack 18. The

rack 18 has formed on its inner face an angle p the inner and narrowend of a substantially v supported laterally of the beam, .a radially extending arm on the apex of the yoke, and a lever means for vertical adjustment of the guard plate connected to the arm and mounted onthe beam.

In testimony whereof I affix my signature.

JOSEPH H, KOEBEL.

ranged between the lugs or stop elements 11 Y on the widened end of the yoke so that the guard 3 will freely ride over the ground surface. The lower corners of the guard 3 are,

rounded, so that should the guard contact with an obstacle such as a stick or stone the same will ride thereover. Obviously the same will ridevover uneven ground surfaces. By

"d swinging the lever 17 the lower element 11 on theyoke will contact with the lower edge of part 6- of the rod el to raise and sustain the guard at any desired height with respect to the shovel blades or teeth 2, and'obviously such adjustment is made without necessitating the driver of the cultivator leaving his seat, or employing tools.

As disclosed by the drawings the outer and Y widened end of the yoke has a central opening 20 therethrough and through this opening there is designed to be inserted a pin 21. By reference to Figure 1 of the drawings it will be seen that the pin will Contact with the i. upper edge of the angle portion 6 of the bar 4 when the guard is in lowered position and obviously the pin 21 will underlie and support the arm 6 when the guard is raised. This arrangement is desirable when the guard is to be locked either raised or lowered on the yoke, and in this. instance the guard is employed for cutting the soil. Y

Vhile have illustrated a satisfactory e1nbodiment of the improvement I do not wish to be restricted to the precise details, and,

therefore, hold myself entitled to make such changes therefrom as fairly fall within the scope of'what I claim.

Having described the invention, I claim:

A cultivator guard including a bracket secured to the beam of .a cultivator and having a pivot pin, a substantially triangular shaped yoke having the apex thereof apertured to receive the pivot pin, relatively spaced elements secured to the yoke at the opposite end thereof from the connection with the pivot pin, a guide plate connecting the elements and spaced from the yoke to provide a vertical guide, .a bar having one end mounted on the pivot pin and extending rearwardly through the guide, said bar being bent laterally intermediate the ends thereof to offset the remaining portion of the bar from that portion received by the guide, a guard plate secured to the offset portion of the bar and 

